Chapter 1: Introduction Of Electronics Communication Flashcards
_________ is the process of exchanging information.
Communication
Two main barriers are _______ and _______.
Language and distance
_____ degrades or interferes with transmitted information.
Noise
The ________ is a collection of electronic components and circuits that converts the electrical signal into a signal suitable for transmission over a given medium.
Transmitter
The _______ channel is the medium by which the electronic signal is sent from one place to another.
Communication channel
Water is the medium for _____.
Sonar
A _________ is a collection of electronic components and circuits that accepts the transmitted message from the channel and converts it back into a form understandable by humans.
Receiver
A electronic device incorporates circuits that both send and receive signals.
Transceiver
Signal _______, or _______, exist in all media of wireless transmission. It is proportional to the square of the distance between the transmitter and receiver.
Attenuation or degradation
The simplest method of electronic communication is referred to as _____. A one-way communication system.
Simplex
Most electronic communication is two–way and is referred to as ______.
Duplex
When people can talk and listen simultaneously it is called _________.
Full duplex
The form of two-way communication in which only one party transmits at a time is known as _____.
Half duplex
An ________ is a smoothly and continuously varying voltage or current.
Analog signal
_______ signal change in steps or in discrete increments.
Digital
_______ and __________ are electronics techniques for transmitting information efficiently from one place to another.
Modulation and multiplexing
